CVE-2024-50096 Affecting kernel-64kb-devel package, versions <6.4.0-150600.23.30.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-SLES156-KERNEL64KBDEVEL-8512360
  • published14 Dec 2024
  • disclosed13 Dec 2024

Introduced: 13 Dec 2024

NewCVE-2024-50096  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 kernel-64kb-devel to version 6.4.0-150600.23.30.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-64kb-devel package and not the kernel-64kb-devel package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

nouveau/dmem: Fix vulnerability in migrate_to_ram upon copy error

The nouveau_dmem_copy_one function ensures that the copy push command is sent to the device firmware but does not track whether it was executed successfully.

In the case of a copy error (e.g., firmware or hardware failure), the copy push command will be sent via the firmware channel, and nouveau_dmem_copy_one will likely report success, leading to the migrate_to_ram function returning a dirty HIGH_USER page to the user.

This can result in a security vulnerability, as a HIGH_USER page that may contain sensitive or corrupted data could be returned to the user.

To prevent this vulnerability, we allocate a zero page. Thus, in case of an error, a non-dirty (zero) page will be returned to the user.

CVSS Scores

version 3.1